Will this differential fit this axle? Please help

[Deadly BlaZe]

I was wondering if a differential from a 3 bolt rear end work with a 4 bolt? I would think they do since the axel's shafts slide in and not bolt in.

 

[Deadly BlaZe]

You have to actually worry about gear ratios, etc. They are probably different. I know manual/autos have different gear ratios in the rear-end.

So would a 5 speed differential from a 3 bolt work with a 4 bolt?

 

[Deadly BlaZe]

Yes, but you need all the parts for the swap too.
http://www.vfaq.com/mods/4bolt.html

So the gear ratios are different with the 3 bolt? Also, would it be possible to use 3 bolt axle cups, 3 bolt axles, and a 3 bolt differential with a 4 bolt driveshaft, and transfer case? Or does everything need to be changed?

 

[Deadly BlaZe]

As long as your swap is Manual to Manual or Auto to Auto you won't have gear ratio problems, just take the swap link, and apply it, but do it as a 4bolt to 3bolt swap (which is what I gather you doing right?).

Ok thanks for the help. I'll keep all this in mind.